body {
    margin: 0px;
    padding: 0px;
    background-color: rgb(53, 51, 51);
    overflow-x: hidden;
    overflow-y: hidden;
}

.a_1 {
    margin: 0px;
    width: 20%;
    position: absolute;
    top: 40px;
    bottom: 0;
    background-color: rgb(61, 61, 61);
    padding: 10px;
}

.a_1 button {
    background-color: rgb(53, 51, 51);
    width: 100%;
    border: none;
    color: white;
    height: 45px;
    border-radius: 5px;
    border: 1px solid white;
    margin-top: 10px;
}

.a_1 button:hover {
    background-color: white;
    color: black;
}

.a_2 {
    margin: 0px;
    width: calc(80% - 25px);
    height: 100%;
    border: none;
    left: calc(20% + 20px);
    position: absolute;
    top: 40px;
    bottom: 0;
}

.login_win {
    width: 100%;
    position: absolute;
    top: 0px;
    bottom: 0px;
    background-color: rgba(0, 0, 0, 0.212);
    backdrop-filter: blur(10px);
    color: #00FF00;
}

.login_win input {
    width: 100%;
    height: 50px;
    background-color: rgba(61, 61, 61, 0.644);
    border: none;
    outline: none;
    color: #00FF00;
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
}

.login_win button:hover {
    background-color: #00FF00;
    color: black;
}